Fusion of Infrared and Visible Images for Face Recognition

  • Aglika Gyaourova
  • George Bebis
  • Ioannis Pavlidis
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3024)

Abstract

A number of studies have demonstrated that infrared (IR) imagery offers a promising alternative to visible imagery due to it’s insensitive to variations in face appearance caused by illumination changes. IR, however, has other limitations including that it is opaque to glass. The emphasis in this study is on examining the sensitivity of IR imagery to facial occlusion caused by eyeglasses. Our experiments indicate that IR-based recognition performance degrades seriously when eyeglasses are present in the probe image but not in the gallery image and vice versa. To address this serious limitation of IR, we propose fusing the two modalities, exploiting the fact that visible-based recognition is less sensitive to the presence or absence of eyeglasses. Our fusion scheme is pixel-based, operates in the wavelet domain, and employs genetic algorithms (GAs) to decide how to combine IR with visible information. Although our fusion approach was not able to fully discount illumination effects present in the visible images, our experimental results show substantial improvements recognition performance overall, and it deserves further consideration.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Aglika Gyaourova
    • 1
  • George Bebis
    • 1
  • Ioannis Pavlidis
    • 2
  1. 1.Computer Vision LaboratoryUniversity of NevadaReno
  2. 2.Visual Computing LaboratoryUniversity of Houston 

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